[asterisk-users] Including doesn't have any effect

[Markus]

Hi list,

n00b question, but I can't figure it out:

[callthrough]
exten => _+X.,1,NoOp(nothing here)
#include "blockedall.conf"
exten => _+X.,n(hangup),Hangup
exten => _+X.,n(nohangup),GotoIf($["${CALLERID(num)}" = 
"anonymous"]?nocli:cli)
... more stuff that is handling the call ...

I'm putting CLIs that I don't want to be able to call my system into 
blockedall.conf:

exten => _+X.,n,GotoIf($["${CALLERID(num)}" = "+493456789"]?hangup:nohangup)
exten => _+X.,n,GotoIf($["${CALLERID(num)}" = "+492345678"]?hangup:nohangup)
exten => _+X.,n,GotoIf($["${CALLERID(num)}" = "+491234567"]?hangup:nohangup)

But it never moves to "hangup" when I call from any of those CLIs :-(

BUT, if I include it directly in extensions.conf, it works:

[callthrough]
exten => _+X.,1,NoOp(nothing here)
exten => _+X.,n,GotoIf($["${CALLERID(num)}" = "+493456789"]?hangup:nohangup)
exten => _+X.,n(hangup),Hangup
exten => _+X.,n(nohangup),GotoIf($["${CALLERID(num)}" = 
"anonymous"]?nocli:cli)
... more stuff that is handling the call ...

I made sure that "blockedall.conf" actually gets included by executing 
"dialplan show callthrough".

What am I missing?

Asterisk 11.17.1.

Thank you!
Markus